Make this easy Hashbrown Breakfast Casserole for a relaxing brunch this weekend. Can be made ahead for extra convenience!

female hand lifting slice of hash brown breakfast casserole out of casserole dish

I’ll be honest: I usually lean more towards sweet breakfast options, but I do make an exception for any kind of egg-based savory dish. Add potatoes, bacon, the option to make it ahead and a few colorful veggies – and consider me sold ?

This is one of my favorite savory breakfast casseroles. We frequently have it for dinner around here as well -it’s just so simple and delicious, I could eat it any time of the day!

Ingredients you’ll need

Here is a visual overview of the ingredients in the recipe. Scroll down to the printable recipe card at the bottom of this post for quantities!

ingredients for hash brown breakfast casserole with text labels — Ingredients for Hashbrown Breakfast Casserole: Sausage, bacon, onion, red pepper, celery, hash browns, cheddar, eggs, milk, ground paprika, nutmeg, salt and pepper.

Ingredient notes

Sausage: Plain old breakfast sausage is the classic here, but feel free to use turkey breakfast sausage, maple breakfast sausage or even Italian sausage can all work in this casserole.
Red pepper: Feel free to use a yellow or green pepper in place of the red, if that’s all you have on hand.
Cheese: Shredded cheddar is my favorite here, but feel free to use Colby Jack, Gouda or Swiss cheese all work in place of the cheddar.
Milk: I find this casserole plenty rich, so I use 2% milk. Feel free to use whole or half and half instead. I would personally not use cream, because the casserole already has fat from the sausage, bacon and cheese.

How to make a Hashbrown Breakfast Casserole

1. Start by browning the sausage and bacon in a large skillet until both are cooked.

photo collage to show how to sauté meat and vegetables to make a breakfast casserole

2. Next, add the diced vegetables and cook until softened.

3. Transfer the sausage mixture to your largest mixing bowl. Add all of the remaining ingredients to the bowl, then carefully stir to combine everything.

photo collage to show how to assemble a hash brown breakfast casserole

4. Transfer the mixture to a 9×13 inch casserole dish and bake.

Let the casserole sit on the counter for 10-15 minutes before slicing it to serve.

sliced hash brown breakfast casserole in a white dish

Recipe tips

Should I thaw frozen hashbrowns before cooking?

Yes, I recommend thawing frozen hashbrowns according to package directions before using in this casserole recipe.

Can you make this casserole ahead?

Yes, you can!

It lasts for up to 3 days in the fridge.

To reheat, simply put in a 375˚F oven for 30 minutes until the casserole is heated through.

Can I skip browning the sausage and vegetables?

No, please don’t.

I know it’s an extra step, but browning the sausage and bacon adds a lot of extra flavor.

Browning the vegetables along with the meats is important too to remove excess liquid from the veggies.

If you skip this step, all the extra liquid will come out of the vegetables during baking and make your casserole mushy.

slice of hash brown breakfast casserole on white plate

More savory breakfast recipes

PS If you try this recipe, please leave a review in the comment section and add a star rating in the recipe card – I appreciate your feedback! Follow along on Pinterest, Facebook or Instagram.

Hashbrown Breakfast Casserole